US1003084A - Type-writing machine. - Google Patents

Description

E. E; BARNEY. TYPE WRI TING MACHINE. APPLICATION FILED JULY 3,1909.

Patented Sept. 12, 1911.

2 BHBETS-SHBET 1.

INVENTEIR A] W5M l-IISATTDRNEV E.E.BARNEY. TYPE WRITING MACHINE.

APPLICATION FILED JULY 3, 1909.

2 w m m E I E M 5 5 M, E N m w 1, W

H'lEA TEJR EY saunas rann cri cs.

EDXVIN E. BAENEY, OF S'iTRACUSE, NEYV YORK, ASSIGNOR TO THE MGNARCl-I TYPE- W'RITER COMTPA'NY, 0F SYRACUSE, NEW' YORK, A. CORPORATION OF NEW YORK.

TYPE-VIRITING MACHINE.

eas es To all whom it may concern: v

Be it known that L; EDWIN E. BARNEY, citizen or" the United. States, and resident of Syracuse, in the county of Onondaga and Stategoit New York, have invented certain new; and useful. Improvements in Typel l riting .Machines, of which the following is a specification.

My invention relates to typewriting'machincs and more particularly to the method of audincans for uniting hanger arms.

Great diliiculty has been encountered heree totore in obtaining and maintaining the proper adjust in cut between the hanger arms Oi a type bar and between the bearings 01: the type bar. Various methods have been employed for connecting the hanger arms to retain "the hearings properly adjusted, such, for instance, as ordinary rivets, shouldered rivets, combined right and left-hand screws between the hanger arms and headed screws threaded at one end into a hanger arm and headed and unt-liireaeled at the other.

The screw connections wereemployed pri-- marily as adjusting means for effecting a relative adjustment between the hanger arms. All of these means, however, are open to objection and have not proved reliable. Connecting the hanger arxis by rivets involves various objections. in some cases the desired adjustment between the hanger arms and the bearings could not always be obtained in the first instance, but it was necessary in order to get the best re sults to first unduly tighten-the bearings, form the heads of the rivets and then afterward loosen up the bearing until'the type bar'was sufficiently tree to turn easily.

side from the above disadvantages from the use of rivets they only prodded, in some instanccaior preventing the hanger arms tron. springing outwardly and by their use s, and in no case ion of the hearings be c cant? unnerved. Moreover, in some instances. heading; up oi the rivets justment of thebearings could be attained only through an adjustment of the screw.'

in constructions which employ headed Specification of Letters Patent.

implication filed July 3, 1909.

Patented Sept. 12, till i. Serial No. 505,817.

screws, the adjustment of the hearings mainly depended upon the screws. Then;

again such screws made no provision for pre-l ventmg an inward movement of the hanger arms. They provided only against the arms springing outwardly away from each other.

threaded into a hanger arm at one end was employed. Turning the screws in such constructions changed the relation of the arms of the hanger and affected the bearings of the type bar. I

The ma n object of my invention to overcome the above and other difiiltzultics heretofore encountered and to provide a simple and eflicientmethod of and means for uniting hanger arms while they are maintained. in adjusted relation. with the type bar in placeand without disturbing such adjustment and for maintaining the adjustment of the arms while the hanger is in use. i

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices to be hereinaf er described and particulariy point ed out in the appended claims.

In. the accompanying drawings, Figure 1 is anlenlargcd detail side view of a type bar and hunger made in accordance with my invention. mldig. 2 is a front elevation of the same with parts sectioned away. Fig. 3 is a fragn'ientary vi'ew'showing a machine or mechanism for carrying out the method" forming the subject-matter of the present invention, the view illustrating a type bar and hanger 1n lace in the machlne and the be understood that various styles of type bars and bifurcated hangers may be used.

The type bar 1 is provided with trunnionlike concd pivots 2 which are received in hunger arms connected by itsthreadcd conthreaded end in a tapped opening in a seg-.

ment 9. In making the hangers they are pr ferably formed from a blank with pivoted bearings therein and holes are pierced .therein which are a terward tapped for a threaded tie rod. Th hanger is then formed and folded substantially as shown in the drawings with the typebar seated in the bearings between the hanger arms, the holes for the tie rod lacing brought into alinement.

The hanger is adjusted to a centering form (not shown)=-upon a semi-automatic machine and is received between two hand operated jaws l0 (.llig. 3) of a vise-like clamp forming partof the machine. These jaws are closed over the bearing ends of the hanger so that the exact relation of the hanger arms and bearings for the type bar is provided and maintained. This adjustment of the type bar and hanger in the machine brings the'openings for the tie rod into registration with a tap 11 and with a wire 12. The \wire 12 is secured in a rotary chuck 13 and is adapted to pass through a fixed die 1% by which threads 15 are out along the, wire when the: chuck is rotated.

The operator first mo s a treadle which releases the rotating/tap 11 and causes'it to move in the: direction of the arrow 16 and to pass through the registering tie rod openings in the hanger and to tap the openings in bothjhanger arms at a single operation so that the threads tapped in one hanger arm are as though they were a continuation of those tapped in the other hanger arm in order that a .screw, the threads of which extend in one direction, may pass through and properly co-act with the threadsin both of the hanger arms without' disturbing the adjustment of .cither ljianger arm. After the tap haspassed through both of the registering openings in the hanger arms the rotation of the tap is reversed and it is .moved in the direction of the arrow 17 and Withdrawn. from the hanger. Simul aneously with the withdrawal of the ta bll the wire 12 is rotated pass .it throughthe staby the chuck 13 t tionary thread cut ing die 14 and to feed 'the screw threaded rod in the direction of thc-arrow 18, the feed of the wire being suitably timed to follow up the receding tap and to thread itself through the. tapped holes in the hanger arms until the free end of the wire projects slightly beyond the lefthand wall of the hanger in Fig. 3. The wire l2ceases to rotate at this point and during the stop motion of the wire rod two parallel saws 19 and 20 move transversely of the axis of the rod, one to sever the projecting end close to the hanger and the other to sever the threaded tie rod from the body portion of the wire as shown in Fig. The iws then swing back to the position shown inFig. 3 and the direction of rotation of the wire 12 reversed to draw the projecting threaded end back through the threading die 1-1 in the direction of the arrow 21 to remove any bur caused by the saw 19. This leaves the tie rod 22 of uniform diameter throughout and also threaded for its whole length. Each end of the tie rod extends slightly beyond its associate hanger arm as shown in Figs. 2 and The operator then releases the jaws 10 and removes the hanger with the type bar mounted in place and the hange 1 arms properly united by the tie rod. The act of threading the tie rod through the tapped openings in the-hanger arms in no manner dusturbs the adjustment of the hanger arms provided by an adjustment of the jaws 1.0. The hanger with the bearing tacos in the hanger arms properly adjusted with ref erence to the pivot of the type bar is clamped before the threaded rod 12 is threaded into the tapped openings and this adjustment is maintained during the act of connecting the hanger arms and is not afterward disturbed, and there is no liability of a derangement of the adjustment in the subsequent use of the type bar in the typewrit-ing machine.

Thus it will be understood that the threads of the tie rod, all extending in the same :direction, cause the two arms of the hanger to act as check nuts or, in other words, each threaded opening in a hanger arm effects a checking or counterbalance on the other to prevent a rotation of the screw in its tapped openings in either direction. Otherwise stated, if one hanger arm through an outward tension tends to rotate the screw tie rod in one direction, the opposite arm, which must have the same degree of tension, tends torotate the screw threaded tie rod in the opposite direction. It will-be understood, however, thateven it this headless threaded tie rod should turn inits tapped openings nally through the tapped openings but the hanger arms yvouldstlll bemaintaincd properly spaced apart. There is no necessity in this construction of upsetting the ends of the tie rod because there is notel'idency for the threaded wire to turn in its tapped openings and it is not intended that the tie rod should in any manner effect an adjustment between the hanger arms, this adjustment being provided in the first instance before the tie rod is inserted in place. It is not ordinarily intended to readjust the hanger. In exceptional cases, however, where the bearing loosens up from wear and re-adjustment is necessary, the adjustment can be eli'eeted without the mutilation of the screw by removing the hanger from the machine and slight l compressing the projecting erds oi the threaded tie rod between the jaws of a Vise without exerting any direct pressure upon the hanger arms themselves. This will be sullieient to move the hanger arms toward ea h other to compensate for any wear at the bearings without loosening the connection between the hanger arms.

l t will be understood that the threaded tie rod resists both inward and outward. movement ol the hanger arms and forms an ellieienl lie or connection between the hanger arms. It has been found. in practice that. the present construction. will resist a pressure of more than twice the amount of a rivet connection between the hanger arms.

Thus it may be assumed that a riveted hanger subjected to a pull of lil'ty pounds at the rivet will cause a loosening up of the hearing. The threaded eonnectitm of the present construct ion will resist a one hundred pound affording a. loosening of and operative to prevent expansion of said arms, the threads of the screw and of the openings extending in one direction only.

2. T he herein described method of uniting a hit'ttrfatetl hanger and a type bar having a pivot which consists in adjusting the hanger arms in their proper relation to said pivot by forcing said hanger arms toward each other, holding said arms in their ad justed positions, tapping openings in said hanger arms while thus held, and then threading a single tie-rod through said tapped openings while the said arms are still maintained under compression and in adjusted relation to the pivot.

Signed at Syracnsefin the county of Onondaga, and State of New York, this first day of July A. D. 1909.

EDlV I N E. BARNEY.

\Vitnesses G. B. BRAND, WV. HAY.

Images